The first detections of molecular outflows from local Ultraluminous infrared galaxies (ULIRGs, \({\rm L_{IR}}\)  \(> 10^{12} L_\odot \) ) were achieved almost simultaneously using very deep ground-based CO(1-0) spectra ([1]}), and spectra of OH lines obtained with the Herschel satellite ([2]}) of the ULIRG/AGN Mrk 231. Now, with the addition of new facilities such as the Atacama Large Millimeter Array (ALMA) and the Northern Extended Millimeter Array (NOEMA), outflows have been detected in a large number of local LIRGs and ULIRGs, using both CO and OH rotational lines [3]}, [4]}, [5]}, [6]}. In all cases, mass outflow rates of the order or even significantly larger than the star formation rate in the galaxy were derived, suggesting that galactic winds regulate star formation in these systems.
